If youre referring to the Hostclient (Connected directly to ESXi) when speaking of https://myip/ui ?
Is your answer is "yes"... than expect the the vCenter HTML5 vSphere Client brings a much greater experience! Otherwise there is no 3rd. Party client.
The price for a vSphere Essentials starts around 470,- EUR for License and a mandatory one year Subscription for 62,- EUR. Just ask your local VMware Partner or go directly to vmware.com and buy it.
Regards,
Joerg